Improving environmental performance and satisfying regulatory requirements through the continuous monitoring of particulate emissions from foundry

摘要

Operators of many ferrous and non -ferrous foundry processes have made significant environmental improvements in recent years fitting high performance fabric filter dust collectors (bag-filters) to furnace, cupula, shotblasting, sand cleaning and finishing processes. Emissions from such processes are highly abated only when bagfilters operate to their design condition, and therefore the current issue is how to effectively monitor the condition of the bagfilter to ensure it is operating to design conditions and demonstrating, on an ongoing basis, that particulate emissions are below legislative limits. This paper focuses on how Electrodynamic type particulate monitors are used by foundries in the UK, Germany, Japan, and US to continuously monitor the performance of bagfilter s as well as help maintenance personnel diagnose the location of leaking or faulty bag rows hence reducing re-bagging costs. It also covers how such monitoring satisfies environmental legislative requirements resulting from PPC (UK), IPC (Europe) and MACT (US) as well as improves environmental performance.